Performance analysis of variable rate variable power V-BLAST system
Yujun Kuang · Journal of China Institute of Communications · 2004
Based on the analysis of power control issue for V-BLAST system in time varying channels, a novel power control algorithm was proposed, which was called joint time-slots average power control. By controlling the transmitting power of adjacent time slots on a whole, the algorithm can improve the power usage by 10 percent, and enhance the performance of the system at about 0.5dB at the same time. The rate quantization method used in the paper can be used in multiple input multiple output wireless systems for adaptive modulation.